Specifications
| Fuel | Gasoline |
|---|---|
| Frequency | 60.0 Hz |
| Standby power | 5 kW |
| Standby kVA | 4300 |
| Prime power | 4 kW |
| Emissions | EM |
| Oil capacity | 1.1 L |
| Voltage options | 120 V |
| Phase | 1 |
| Rated current | 35.8 A |
| Dimensions (L×W×H) | 746×543×566 mm |
| Dry weight | 82 kg |
| Fuel tank | 30.2 L |
| Tank runtime | 16.5 hr |
Maintenance & consumables
for the Kohler Command PRO| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | — | 300 hr | |||
| Fuel filter | — | 300 hr | |||
| Oil | SAE30 | 1.16 | — | 100 hr | |
| Spark plug | — | 500 hr |
Service intervals
7| Item | Action | Hours | Months | Notes |
|---|---|---|---|---|
| Oil | Change | 100 hr | 12 mo | First service — After first 5 hours |
| Cooling areas | Clean | 100 hr | 12 mo | |
| Low-profile air cleaner element | Clean | 100 hr | 12 mo | |
| Valve clearance | Adjust | 200 hr | Engine cold; Kohler portable dealer performs this service | |
| Fuel filter | Check | 300 hr | Clean or replace if needed | |
| Low-profile air cleaner element | Replace | 300 hr | ||
| Spark plug | Replace | 500 hr | 12 mo | Set gap |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Service specifications
3| Type | Item | Value | Unit | Condition |
|---|---|---|---|---|
| Gap | Spark plug gap | 0.03 | in. (0.76 mm) | |
| Torque | Oil drain plug | 13 | ft. lb. (17.6 N-m) | |
| Torque | Spark plug | 20 | ft. lb. (27 N-m) |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Recommended fluids
| Fluid | Grade | Standard | Ambient | Capacity | Notes |
|---|---|---|---|---|---|
| Engine oil | 5W-30 (below 0F), 10W-30, or SAE 30 (above 20F) per viscosity chart | API service class SJ or higher | 1.1 L (1.16 U.S. qt.) | Kohler oils recommended | |
| Fuel | Clean, fresh, unleaded gasoline; octane 86(R+M)/2 or higher; RON 91 min; up to 10% ethanol | 30.2 L (8 gal.) | E15, E20, E85 not approved; do not use gasoline older than 30 days |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Procedures
4Air Cleaner Service maintenance
⚠ Operating with loose or damaged air cleaner components could cause premature wear and failure
- Remove screw and air cleaner cover
- Remove foam element from air cleaner base
- Wash foam element in warm water with detergent; rinse and air dry
- Lightly oil foam element with new engine oil; squeeze out excess oil
- Reinstall foam element into air cleaner base
- Reinstall air cleaner cover and secure with screw
Change Oil maintenance
⚠ Change oil while engine is warm
- Clean area around oil fill plug/dipstick and oil drain plug
- Remove oil drain plug and oil fill plug/dipstick; drain oil completely
- Reinstall oil drain plug; torque to 13 ft. lb. (17.6 N-m)
- Fill crankcase with new oil up to point of overflowing filler neck
- Reinstall oil fill plug/dipstick and tighten securely
- Dispose of used oil per local ordinances
Spark Plug Service maintenance
Tools: wire feeler gauge
- Clean out spark plug recess and remove spark plug
- Check gap using wire feeler gauge and adjust per specification
- Install spark plug into cylinder head
- Torque spark plug to 20 ft. lb. (27 N-m)
Storage maintenance
⚠ If engine will be out of service for 2 months or more
- Add Kohler PRO Series fuel treatment or equivalent to fuel tank; run engine 2-3 minutes to stabilize fuel
- Change oil while engine is still warm
- Remove spark plug and pour about 1 oz. of engine oil into cylinder; replace spark plug and crank slowly to distribute oil
- Clean generator
- Store in a dry, well-ventilated place with a cover, only after engine and muffler have cooled
- Store generating set in a clean and dry place
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Common questions
What is the power rating of the Kohler GEN 5.0?
The Kohler GEN 5.0 is rated 5 kW standby (4300.0 kVA).
What engine is in the Kohler GEN 5.0?
The Kohler GEN 5.0 is powered by the Kohler Command PRO engine.
What fuel does the Kohler GEN 5.0 use?
The Kohler GEN 5.0 runs on Gasoline.
Troubleshooting
6Symptoms & remedies
| Symptom | Cause | Remedy |
|---|---|---|
| Engine Not Starting/Running Abnormally | Engine Stopped No Electric Current Tripping of Circuit Breaker Load connected to generating set during start-up Start and Stop control ON or OFF Oil level too low Unsuitable fuel level too low Fuel valves closed Clogged fuel filter Clogged fuel strainer Clogged air filter Faulty spark plug Fuel supply blocked or leaking Blocked ventilation inlets Circuit protectors not actuated Faulty appliance supply cord Faulty electrical sockets Faulty alternator Device connected or faulty cord Overload | |
| No AC output | Circuit breaker in OFF position. | Switch circuit breaker to ON. |
| Engine not operating at rated RPM | Adjust engine running at normal operating temperature to 3750 ± 100 RPM. | |
| Circuit breaker or receptacles faulty | Test for voltage at circuit breaker and receptacles. | |
| Stator is faulty | Test for voltage and resistance. | |
| Brushes are faulty | Test for resistance between brushes and slip ring. |
Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing. Full Kohler GEN 5.0 troubleshooting guide (10 entries) →
Parts
2| Part # | Description | Qty | System | |
|---|---|---|---|---|
| WP2.0 | 2-inch water pump | 1 | Pump | buy |
| WP3.0 | 3-inch water pump | 1 | Pump | buy |
Service, wear & replacement parts referenced for this model and its engine — confirm the exact part for your serial number. See the full parts catalog to search and cross-reference.